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<!DOCTYPE html>
<meta name=timeout content=long>
<title>Precedence of scroll restoration mode over fragment scrolling in cross-origin history traversal</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<style>
iframe {
height: 300px;
width: 300px;
}
</style>
<div id="log"></div>
<script>
'use strict';
var next;
function frameOnload() {
if (next) {
next();
} else {
// The test does the following navigation steps for iframe
// 1. load page-with-fragment.html#fragment
// 2. load blank1
// 3. go back to page-with-fragment.html
async_test(function(t) {
var iframe = document.querySelector('iframe');
var hostInfo = get_host_info();
var basePath = location.pathname.substring(0, location.pathname.lastIndexOf('/'));
var localURL = hostInfo.HTTP_ORIGIN + basePath + '/resources/page-with-fragment.html#fragment';
var remoteURL = hostInfo.HTTP_REMOTE_ORIGIN + basePath + "/resources/blank1.html"
var steps = [
function() {
assert_equals(iframe.contentWindow.location.href, localURL, 'should be on page-with-fragment page');
// wait one animation frame to ensure layout is run and fragment scrolling is complete
iframe.contentWindow.requestAnimationFrame(function() {
assert_approx_equals(iframe.contentWindow.scrollY, 800, 5, 'should scroll to fragment');
iframe.contentWindow.history.scrollRestoration = 'manual';
assert_equals(iframe.contentWindow.history.scrollRestoration, 'manual');
setTimeout(next, 0);
});
}, function() {
// navigate to a new page from a different origin
iframe.src = remoteURL;
}, function() {
// going back causes the iframe to traverse back
history.back();
}, function() {
// coming back from history, scrollRestoration should be set to manual and respected
assert_equals(iframe.contentWindow.location.href, localURL, 'should be back on page-with-fragment page');
iframe.contentWindow.requestAnimationFrame(t.step_func_done(function() {
assert_equals(iframe.contentWindow.history.scrollRestoration, 'manual', 'navigating back should retain scrollRestoration value');
assert_equals(iframe.contentWindow.scrollX, 0, 'should not scroll to fragment');
assert_equals(iframe.contentWindow.scrollY, 0, 'should not scroll to fragment');
}));
}
];
var stepCount = 0;
next = t.step_func(function() {
steps[stepCount++]();
});
next();
}, 'Manual scroll restoration should take precedent over scrolling to fragment in cross origin navigation');
}
}
</script>
<iframe src="resources/page-with-fragment.html#fragment" onload="frameOnload()"></iframe>
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